To find out if you have a urinary tract infection, your doctor will ask you to pass urine into a plastic cup. When you open the cup, don’t touch the inside of the lid or inside of the cup...Before you pass urine, wipe the area between the labium majora, or outer lips of the vagina, with a special tissue, given to you by your doctor. Then, pass a little bit of urine into the toilet and then into the cup.